CHEMISTRY
JAMB 2011 - Question 24
Chemistry 2011 JAMB Past Questions - Question 24: The function of zinc electrode in a galvanic cell is that it
Choose the correct answers from the options given.
A:
B:
C:
D:
Correct Answer
B
Explanation
The function of the zinc electrode in a galvanic cell is primarily to serve as the anode. In a galvanic cell, oxidation occurs at the anode. In the case of a zinc electrode, zinc atoms undergo oxidation, losing electrons to form zinc ions (Zn^2+). These electrons flow through the external circuit to the cathode, where reduction occurs.
In summary, the zinc electrode facilitates the oxidation half-reaction (Zn -> Zn^2+ + 2e^-) necessary for the overall redox reaction to proceed in the galvanic cell.
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